Improvement in turbine water-wheels



J. OSBORN & s; P. LYBARGER.

TURBINE WATER-WHEEL.

Patented April 10, 1877.

construction and general STATE- s PATENT Orrron JOSEPH OSBORN JOHN P.LYBARGER, OF DELPHOS, OHIO.

IMPROVEMENT IN TURBINE WATER-WHEELS.

Specification forming part of Letters Patent N 0. 189,488, dated April10, 1877; application filed February 26, 1877.

To all whom it may concern.-

Be it known that we, J osnPH OsBoRN and JOHN P. LYBARGER, both ofDelphos, in the countyof Van Wert and State of Ohio, have inventedcertain new and useful Improvements in Turbine Water-Wheels; and we dohereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art towhich it appertains to make and use the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

Our invention relates to that class of turbine water-wheels in which thewater is fed vertically to, and discharged vertically from, the wheel;and it consists in the details of arrangement of parts, all as will behereinafter more fully described, and pointed out in the claims.

Referring to the drawings, Figure l represents a vertical section ofourinvention. Fig. 2 represents a plan view of the same, and Fig. 3 adetail view of the buckets.

Similar letters of reference occurring in the several figures indicatecorresponding parts.

A represents the buckets, formed of three planes, two of the planesforming the inclined sides b b, and joining the third plane, forming thebottom or base a of the bucket, at an obtuse angle, running from the topof the bucket downward and outward to the discharge-orifice, the openingat the upper part of the buckets being larger than the discharge. Theupper edges of the buckets are made concave, and the wheel and bucketsformed of one casting. The case B, or chute-rim, is also made in onecasting, with the chutes formed in it so that the under side orbottom ofthe chutes are concaved, as shown in Fig. 3, while the .top is convex,thus presenting a convex surface to the concave bucket-rim, therebyoffering the greatest strength or resistance in case of any foreignsubstances being caught or lodged in the bucket and carried around bythe back of the same, and in being concave the water is carried to thewheel in a volume, and at an angle best calculated to insure thegreatest percentage of power.

The top of the case or chute-rim B is formed in shape similar to anangular arch, having the outer edge a little lower than the center atthe shaft, the conformation being adapted to receive thecorrespondingly-shaped gate D, as shown in Figs. 1 and 2. The objectofthis construction is to strengthen the upper part of the gate, so thatit will be capable of withconstruction is further aided and strengthenedby casting angular ribs or braces d in the center of the angular slidese, as shown in Fig. 3. Another advantage of this construction is, thatwhen the gate is closed the rib d is directly over the center of thechute, thereby strengthening the slides at that point.

he water-joint is formed of two flanges, G, on the case B, one beinghorizontal, fitting on top of the base-flange, and the otherperpendicular on the under side case, dropping down inside ofbase-flange, and the wheel-flange fitting against the case-flange, thusforming a most effective and simple water-joint.

A concavity is formed in the base of the Fig. 1, while upon the sameshaft, under the coupling at the top, is placed a circular flange, G,which drops down over and covers the top of the stand, so as to preventsand from getting into the working parts.

The gate D is opened and closed by means of a rack,f, on one side of thegate-rim, which is operated in either direction by the pinion g on thevertical shaft, as shown in Figs. 1 and 2.

By means of our present improvements we are enabled to furnish a turbinewater-wheel possessing superior advantages for strength and economy ofconstruction combined with a most efficient and perfect operation.

Having thus described our invention, what we claim as new and usefulis 1. In a turbine water-wheel, the buckets A, formed of the inclinedplanes [2 b and 0, comprising the sides and bottom of the said buckets,and cast solid with the wheel, substantially as and for the purposedescribed.

2. The buckets A, having their upper edges or rims of a concave form, incombination with the convex surface of the chutes, substantially as andfor the purpose specified.

3. The gate D, in combination wi formed of an angular arch, th the caseor chute-rim B,

substantially as specified.

4. The gate D, and provided with formed of an angular arch, thecorrespondingly-shaped slides e. having angular ribs or braces (1,substantially as and for the purpose described.

In testimony that we claim the foregoing as our own invention we aflixour signatures in presence of two witnesses.

JOSEPH OSBOBN. JOHN POLK LYBARGER.

Witnesses:

J on KING, Amzm S. Mom.

